6x + 3x = 36
6x+ 3x = 9x
9x = 36
X= 4
$6 for each shirt
4 shirts for $24
$3 for each shirt
4 shirts for $12
24+ 12 = 36
Here are the methods you can use when multiplying a whole number and a decimal. In multiplying a whole number, you can just do the normal multiplication process and the product would still be a whole number. In multiplying a decimal, it becomes different because the decimal points will affect the product. In multiplying decimal, each time we multiply by a power of 10, the decimal point is moved one place to the right. <span>When multiplying a decimal by a whole number, placement of the decimal point is very important. When a given number has 2 decimal places, the product must also have two decimal places. Hope this explanation helps.</span>
Answer:
Step-by-step explanation:
In order to find what score Alex must earn to have an average of 86 on all his tests, we need to first note what the formula to find the average of a data set is.
What the formula means is that we have to add up all the values then divide by the total number of values.
Let's represent our unknown number as 
.
(since we want AT LEAST an 86).
Let's solve this inequality for x.
So, Alex must score at least an 87% on his next quiz to have an average of 86%.
Hope this helped!
Answer:
35
Step-by-step explanation:
96 (for company A)=75+.60x (x is for the number of miles)
96=75+.60 x
I forgot how I got 35, but I plugged it back into the equation and it worked.
X+y=2
y=1/2x+5
x+ y=2
-1/2x+y =5
Subtracting the two equations;
3/2x=-3
x=-2
Replacing in the first equation;
-2+y=2
y=4
They would intersect at (-2, 4)
